Seagate family comparison
Seagate SkyHawk AI vs Exos
SkyHawk AI and Exos can share capacity and enterprise-class hardware traits, but they are sold for different workloads. SkyHawk AI is tuned for continuous surveillance and analytics streams. Exos is tuned for enterprise server and data-centre storage.
Same connector does not mean same purpose
A SATA Exos drive may work in some NVRs, but SkyHawk AI is the clearer choice when recorder qualification, ImagePerfect AI, SkyHawk Health Management and Rescue coverage matter.
Interactive decision tool
SkyHawk AI or Exos workload selector
Exact-model records
Confirm the model, channel and warranty class
Use the full model number. Capacity alone cannot distinguish retail, OEM, HIK or competitor products.
| Exact model | Family | Capacity | Channel | Warranty class | Recording | Streams / workload | Purpose |
|---|---|---|---|---|---|---|---|
| ST32000VE000 | SkyHawk AI | 32TB | Retail | 5 years + 3-year Rescue class | Mozaic HAMR-CMR | 64 video / 32 AI · 550TB/yr | AI-enabled NVR and edge video |
| ST24000VE002 | SkyHawk AI | 24TB | Retail | 5 years + 3-year Rescue class | CMR | 64 video / 32 AI · 550TB/yr | AI-enabled NVR and edge video |
| ST20000VE002 | SkyHawk AI | 20TB | Retail | 5 years + 3-year Rescue class | CMR | 64 video / 32 AI · 550TB/yr | AI-enabled NVR and edge video |
| ST20000VE003 | SkyHawk AI | 20TB | Retail revision | 5 years + 3-year Rescue class | CMR | 64 video / 32 AI · 550TB/yr | AI-enabled NVR and edge video |
| ST20000VE004 | SkyHawk AI | 20TB | Retail revision | 5 years + 3-year Rescue class | CMR | 64 video / 32 AI · 550TB/yr | AI-enabled NVR and edge video |
| ST20000VE000 | SkyHawk AI | 20TB | OEM | 5 years | CMR | 64 video / 32 AI · 550TB/yr | OEM surveillance integration |
| ST18000VE002 | SkyHawk AI | 18TB | Retail | 3 years | CMR | 64 video / 32 AI · 550TB/yr | AI-enabled NVR; exact warranty differs |
| ST18000VE000 | SkyHawk AI | 18TB | OEM | 5 years | CMR | 64 video / 32 AI · 550TB/yr | OEM surveillance integration |
| ST18000HKAI000 | SkyHawk AI | 18TB | HIK | 5 years | CMR | 64 video / 32 AI · 550TB/yr | Hikvision-channel surveillance |
| ST18000NM000J | Exos | 18TB | Enterprise retail/OEM | 5 years | CMR | 550TB/yr | Enterprise server and data center |
| ST20000NM007D | Exos | 20TB | Enterprise retail/OEM | 5 years | CMR | 550TB/yr | Enterprise server and data center |
| ST24000NM002H | Exos | 24TB | Enterprise retail | 5 years | CMR | 550TB/yr | Enterprise server and data center |
| ST32000NM004K | Exos | 32TB | Enterprise retail | 5 years | Mozaic HAMR-CMR | 550TB/yr | Enterprise server and data center |
The practical difference
SkyHawk AI is designed around video ingestion, event clips and analytics metadata. Exos is designed around enterprise storage, large arrays and mixed server workloads. Both can have a 550TB-per-year workload class, but the firmware and support package differ. Practical step: write down the exact recorder or server model, current firmware, number of drive bays and maximum capacity per bay. Use those facts as the starting point instead of assuming that every SATA system can use every SkyHawk AI capacity.
NVR compatibility
A recorder may accept an Exos SATA drive, yet the vendor may qualify only surveillance models. Confirm the exact NVR model and firmware. Do not assume that a drive appearing in the storage menu means every health or recovery function is supported. When checking a marketplace offer, compare the title, structured model field, product image and selected variation. Stop when those details disagree. A mixed listing can show the correct family name while delivering a different capacity, suffix or sales-channel model.
ImagePerfect AI
SkyHawk AI firmware is the key product distinction. It is intended to manage many simultaneous video and AI streams with reduced frame-loss risk. Exos does not advertise this surveillance-specific firmware path. For a live surveillance system, export important footage and save the recorder configuration before changing storage. Installation, initialization, RAID changes and firmware work can erase data or temporarily make recordings unavailable, even when the new drive itself is healthy.
Health Management
Compatible recorders can expose SkyHawk Health Management recommendations. Exos uses ordinary enterprise health and SMART reporting instead. If the NVR supports SHM, that can simplify preventive maintenance. Use current manufacturer documentation rather than an old retailer summary. Recorder capacity limits, approved-drive lists and health-management support can change with firmware, while an archived product page may still rank in search long after its compatibility information becomes outdated.
Rescue coverage
Current SkyHawk AI channel products commonly bundle three years of Rescue Data Recovery Services. Exos commonly carries a five-year hardware warranty without the same included Rescue package. Coverage must still be verified by exact serial and region. Compare products only after matching capacity, condition and warranty source. A new retail drive, OEM bulk unit, HIK-channel model and renewed drive are different purchases. Putting them in one price table can make the cheapest offer look safer than it really is.
Capacity choices
Both families now reach 32TB. At 24TB and 32TB, choose based on host role and compatibility rather than capacity alone. A surveillance recorder benefits from SkyHawk AI; a storage server may benefit from Exos. Treat warranty and Rescue as separate questions. Hardware warranty normally covers an eligible failed drive; recovery service concerns data. Confirm the exact model, serial number, region, seller and purchase date while the return window is still open.
Recording technology
Current comparison models are CMR, including Mozaic HAMR-CMR at 32TB. HAMR does not mean host-managed SMR. The host still sees a conventional SATA block device, subject to its capacity support. In a multi-bay recorder, consider the complete system rather than one drive. Startup power, airflow, vibration, RAID overhead and rebuild time all rise as capacity and bay count increase. A supported smaller drive can be a better operational choice than an unsupported larger one.
Noise and thermals
Both high-capacity lines can be audible. Exos is often deployed in server chassis where noise matters less. SkyHawk AI still needs NVR airflow and secure mounting, especially in multi-bay systems. For replacement work, identify why the old drive is being changed. A capacity upgrade, failed disk, recorder migration and retention expansion require different steps. Do not initialize the source drive or return it until needed footage has been copied and verified.
Price comparison
Exos can sometimes be cheaper per terabyte because of wider enterprise-channel inventory and recertified stock. Compare condition and warranty carefully. A low price may not replace the value of NVR qualification and Rescue. For a first-time installation, confirm the drive is visible in the recorder before formatting. If it is not detected, check the supported bay, SATA connection, power, firmware and capacity limit. Repeated initialization attempts will not solve a controller limitation.
Using SkyHawk AI outside an NVR
SkyHawk AI can store ordinary files, but its strongest value is surveillance. For general server storage, Exos is normally the more direct product. Choose by sustained workload pattern, not by label colour. Keep the decision simple: identify the host, calculate retention, confirm the approved capacity, select the exact model and verify support. Only then compare prices. This sequence is easier to follow and prevents a deal from becoming the reason for choosing the wrong drive.
Using Exos in an NVR
Use Exos only after confirming recorder support and accepting the absence of surveillance-specific features. It can be reasonable in custom Linux video servers where the administrator controls the storage stack. Save evidence before purchase, including the seller name, exact model, condition, warranty wording and return period. If the delivered label differs from the listing, do not rely on the description. Photograph the label and verify the serial while a return is still straightforward.
Verdict
Choose SkyHawk AI for branded NVRs and video analytics. Choose Exos for enterprise servers, bulk storage and data-centre arrays. In custom systems, compare exact model, firmware needs, Rescue value and current price. After installation, monitor temperature, recording status and health alerts during normal camera activity. A drive that formats successfully can still reveal power, cooling or compatibility problems under load. Keep a separate backup of irreplaceable footage because no single hard drive is a complete backup plan.
Current matching offers
Verify the exact model before purchase
ST20000VE002
Seagate Skyhawk AI ST20000VE002 - Hard Drive - 20 TB - SATA 6Gb/s
$739.99
5-year limited warranty class; Rescue eligibility must still be verified
Buy on Amazon
ST18000NM000J
Seagate Enterprise 3.5" 18000 GB 7200 RPM 18 TB 3.5" 7200 RPM SATA ST18000NM00J
$824.99
5-year limited warranty class
Buy on Amazon
ST20000NM007D
Seagate Exos X20 ST20000NM007D 20TB 7.2K RPM SATA 6Gb/s 3.5in Hard Drive
$839.99
5-year limited warranty class
Buy on Amazon
ST24000NM002H
Seagate Exos X24 24TB Enterprise Internal Hard Drive HDD - 6GB/s SATA 7200RPM 2.5M MTBF (ST24000NM002H)
$959.99
5-year limited warranty class
Buy on Amazon
ST32000NM004K
Seagate Exos 32TB Enterprise Internal Hard Drive HDD - 3.5in 6GB/s SATA 7200RPM 2.5M MTBF (ST32000NM004K)
$1,279.99
5-year limited warranty class
Buy on AmazonSkyHawk authority cluster
Continue with the next useful guide
Frequently asked questions
Clear SkyHawk AI answers
Is Exos compatible with an NVR?
Some recorders accept it, but compatibility and health features vary. Verify the exact recorder and firmware.
Does Exos support AI streams?
Exos can store data produced by AI systems, but it is not marketed with the SkyHawk AI 32-stream surveillance profile.
Do both have a 550TB workload rating?
Current high-capacity models can share that workload class, but workload rating does not make their firmware purposes identical.
Does Exos include Rescue Data Recovery Services?
The standard Exos product positioning does not include the same three-year Rescue package shown for SkyHawk AI.
Which is better for Blue Iris?
A custom Windows Blue Iris server may use either when the controller and capacity are supported. SkyHawk AI remains surveillance-focused; Exos is general enterprise storage.
Which is cheaper?
It changes with capacity, condition and seller. Use live exact-model prices.
Is SkyHawk AI quieter?
Not necessarily. Noise depends on exact model, mounting and workload.
Are 32TB SkyHawk AI and Exos both HAMR?
Current 32TB channel models use Seagate Mozaic HAMR technology while presenting host-compatible CMR behaviour.
Can I mix Exos and SkyHawk AI in RAID?
A custom system may allow it, but matched drives are easier to predict. Branded NVRs may restrict or discourage mixed models.
Which should I buy for a surveillance recorder?
SkyHawk AI is the default unless the recorder vendor explicitly qualifies another drive and you accept the support differences.
Official references
Cloudzat may earn a commission from qualifying purchases. Verify the exact model, recorder support, condition, seller, warranty and Rescue eligibility before purchase.